Isingeniso se-fumed silica

I-silica e-fumed iyinhlobo yomkhiqizo wezemvelo onokusebenza okuphezulu.

Itholwa ngendlela ye-vapor phase, futhi izinto zokwakha ezifana ne-silicon tetrachloride zihlukaniswa emlilweni we-hydrogen ne-oxygen ukuze kukhiqizwe umusi we-silica ezingeni eliphezulu lokushisa, bese kutholwa ngemva kwezinyathelo eziyinkimbinkimbi ezifana nokuhlanganiswa nokupholiswa.

Izimpawu zomzimba

I-silica ephumile iyipowder emhlophe efinyelelelekayo enobukhulu obuncane kakhulu bezinhlayiya, ngokuvamile cishe phakathi kuka-7-40 nanometers, okwenza ibe ne-akhawunti enkulu ye-surface area ethile, ngokuvamile ifinyelela ku-100-400 square meters/gram.
- Inokuhlakazeka okuhle futhi ingahlakazeka ngokulinganayo ezinhlelweni eziningi ze-liquid ne-solid.

Improperty yemichiza

- Izakhiwo zamakhemikhali ziqinile kakhulu, iyinto engashintshi, iyamelana ne-asidi, i-alkali nezinye izinto ezonakalayo, ingahlala iqinile ezimweni ezahlukahlukene zamakhemikhali.
- Inokuzinza kokushisa okuhle, ayizukuphuka kalula noma ukushintsha izici endaweni yokushisa ephezulu.

Indawo yokusebenza

- Imboni yokupenda: Njengomphumela we-rheological, ingavimbela ngempumelelo ukuhamba kwe-pigments ngesikhathi sokugcina upende, futhi ekwakhiweni kwepende, ingalungisa impahla ye-rheological ye-pende, ukuze upende ube ne-leveling enhle kanye nokumelana nokuhamba, ukuze ukwakheka kube kuhle futhi kube muhle.
- Imboni yokunamathela nezikhwama: ingathuthukisa kakhulu i-thixotropy yokunamathela nezikhwama, ivimbele ukunyakaza kweglue ezindaweni eziphakeme noma eziphakeme, futhi ithuthukise amandla nobunzima bokunamathela.
- Imboni ye-silicone rubber: Iyi agent yokwandisa esebenzayo ye-silicone rubber, engathuthukisa kakhulu izakhiwo zomshini ze-silicone rubber, ezifana namandla okudonsa, amandla okuphuka kanye nobunzima, njll., futhi ingathuthukisa nezakhiwo zokucubungula ze-silicone rubber, ikwenza kube neuniformity kakhulu futhi ubuso be-rubber obuvulcanized bube bushelelezi kakhulu.
- Imboni yezimonyo: ngenxa yokumuncwa kwayo okuhle nokusabalala, ingasetshenziswa njengomkhiqizo ophakamisa ubukhulu, umkhiqizo we-thixotropic kanye nomkhiqizo ophikisana nokuhlala emanzini ezimonyo. Isibonelo, kumakhrimu, kumalothi nakwezinye izinto, kusiza umkhiqizo ukuthi ugcine ubukhulu obuzinzile, futhi ingakwazi futhi ukumunca uwoyela phezulu kwesikhumba ukuze igcine isikhumba somile.

Inkampani

Amaqoqo

Mayelana

Silandele